Active Hip Internal Rotation Research Articles

A COMPARISON OF THE LUMBOPELVIC-HIP COMPLEX MOVEMENT PATTERNS IN PEOPLE WITH AND WITHOUT NON-SPECIFIC LOW BACK PAIN DURING AN ACTIVE HIP TEST

The current study aimed to compare the rhythm of complex lumbopelvic-hip movements in subjects with and without low back pain (LBP) during an active hip internal rotation (AHIR) test. Fifteen professional athletes with LBP were recruited in this analytical study and were compared with 20 age-sex matched healthy people with no history of sports-related rotational movements. A 3D optoelectronic motion analysis system recorded the kinematics of all subjects during an AHIR in the prone position. The outcome measures included the values of hip and pelvic rotation across the test, pelvic rotation during the first half of the test and timing of hip/pelvic rotation in the transverse plane. Then, variables were compared between the two groups. The amount of internal hip rotation of the lower extremities, pelvic rotation in either first half of the pathway or throughout whole path length were all significantly higher in subjects with LBP than the healthy group ([Formula: see text]). Additionally, subjects with LBP showed an earlier movement of the lumbopelvic area than healthy group during the task. Asymmetric movement was seen between the right and left sides of the subjects with LBP for lower limb and hip internal rotation (HIR) ROM. The results demonstrated that the athletes with LBP who use more repetitive movements of their trunk and lower extremities during sports, show increased tendency of lumbopelvic rotation motion during AHIR test.

Effect of Hip Position and Gender on Active Hip Internal Rotation and External Rotation on the Dominant Side

Objective: This study was designed to establish the influence of gender and hip flexion position on active range of motion of the hip in external and internal rotation. Method: 100 (50 Males & 50 Females) healthy college-age subjects with no previous hip problems were studied. Mean age was 21.8 years with a range of 18-27 years. Hip rotation of the dominant leg of each subject was measured in the prone (hip near 0 of flexion) and seated (hip near 90 of flexion) positions using a standard goniometer. Result: Data were analyzed using t test. Our results indicate Mean values of active hip ROM for college aged students is 27.85 for internal rotation and 34.61 for external rotation in seated position & Mean values of active hip ROM for college aged students is 35.35 for internal rotation & 42.57 for external rotation in prone position.Females had statistically more active hip internal and external rotation than males. Conclusion: These findings are clinically significant and stress the importance of documenting measurement position.

Groin pain and hip range of motion is different in Indigenous compared to non-Indigenous young Australian football players

Groin pain and hip range of motion is different in Indigenous compared to non-Indigenous young Australian football players

Reliability of common lower extremity musculoskeletal screening tests

Objectives: Pre-season or pre-participation screening is commonly used to identify intrinsic risk factors for sports injury. Tests chosen are generally based on clinical experience due to the paucity of quality injury risk factor studies for sport and, often, the reliability of these clinical tests has not been established. The purpose of this study was to establish the reliability of eight, musculoskeletal screening tests, commonly used in the screening protocols of elite-level Australian football clubs. Methods: Fifteen participants (n=9 female, n=6 male) were tested by two raters on two occasions, 1 week apart to establish the inter-rater and test–retest reliability of the chosen measurement tools. The tests of interest were Sit and Reach, Active Knee Extension, Passive Straight Leg Raise, slump, active hip internal rotation range of movement (ROM), active hip external rotation ROM, lumbar spine extension ROM and the Modified Thomas Test. Results: All tests demonstrated very good to excellent (Intraclass correlation coefficient, ICC 0.88–0.97) inter-rater reliability. Test–retest reliability was also shown to be good for these tests (ICC 0.63–0.99). Conclusion: The findings suggest that these simple, clinical measures of flexibility and ROM are reliable and support their use as pre-participation screening tools for sports participants.

Reliability of common lower extremity musculoskeletal screening tests

Objectives: Pre-season or pre-participation screening is commonly used to identify intrinsic risk factors for sports injury. Tests chosen are generally based on clinical experience due to the paucity of quality injury risk factor studies for sport and, often, the reliability of these clinical tests has not been established. The purpose of this study was to establish the reliability of eight, musculoskeletal screening tests, commonly used in the screening protocols of elite-level Australian football clubs. Methods: Fifteen participants ( n=9 female, n=6 male) were tested by two raters on two occasions, 1 week apart to establish the inter-rater and test–retest reliability of the chosen measurement tools. The tests of interest were Sit and Reach, Active Knee Extension, Passive Straight Leg Raise, slump, active hip internal rotation range of movement (ROM), active hip external rotation ROM, lumbar spine extension ROM and the Modified Thomas Test. Results: All tests demonstrated very good to excellent (Intraclass correlation coefficient, ICC 0.88–0.97) inter-rater reliability. Test–retest reliability was also shown to be good for these tests (ICC 0.63–0.99). Conclusion: The findings suggest that these simple, clinical measures of flexibility and ROM are reliable and support their use as pre-participation screening tools for sports participants.

Influence of hip position and gender on active hip internal and external rotation.

A general lack of descriptive details exists for measurements of hip rotation range of motion. This study was designed to establish the influence of gender and hip flexion position on active range of motion of the hip in external and internal rotation. Sixty (39 females and 21 males) healthy college-age (21.8 +/- 1.7 years) subjects were studied. Hip rotation of the dominant leg of each subject was measured in the prone (hip near 0 degree of flexion) and seated (hip near 90 degrees of flexion) positions using a standard goniometer. Data were analyzed using an analysis of variance model. Pearson's r statistics were used to determine the degree of association between measurements of hip rotation made seated vs. prone. A statistically significant difference (p < 0.05) was found between mean hip external rotation (ER) measured seated (36 +/- 7 degrees) and mean hip ER measured prone (45 +/- 10 degrees). Conversely, mean hip internal rotation (IR) measured seated (33 +/- 7 degrees) was not statistically different than mean hip IR measured prone (36 +/- 9 degrees). Females had statistically more active hip internal and external rotation than males (p < 0.05). A moderate degree of association existed between measurements of hip ER taken in the prone vs. seated position (r = 0.57, p < 0.05). For IR, the degree of association between the two measurement positions was slightly higher (r = 0.72, p < 0.05). Unlike the amount of active hip internal rotation which showed little difference between measurements made prone vs. seated, our data indicate that measurement position had a significant effect on the amount of active range of motion of the hip in ER. These findings are clinically significant for they stress the importance of documenting measurement position. They also stress the need for representative norms to be established for each hip position and gender.

Stabilization of the trunk and pelvis while measuring hip internal rotation. Suggestion from the field.

Physical therapists routinely measure range of motion (ROM) of active hip internal rotation while the patient sits on the edge of an examining table. If the trunk is not stabilized during this action, however, the patient may laterally flex his trunk to the side being measured. This unwanted movement may cause pelvic rocking and the hip on the side being measured to lift from the examining table. Consequently, not stabilizing the trunk may result in invalid goniometric measurements of hip internal rotation ROM because the measurements include movements other than hip internal rotation (Fig. 1). Techniques that stabilize the trunk and pelvis and help limit unwanted hip elevation are, therefore, important for physical therapists to consider. Traditionally, therapists may stabilize the trunk and pelvis by instructing the patient to grasp the edge of the examining table and pull up, thus fixing the pelvis to the table.